During much of the Last millennium, conservators used this so-called ‘lining’ strategy to secure the works of art in the nationwide selections. They connected a item of fabric to the back of the paintings against the adverse impacts of extreme wetness variations by using an assortment of wax and material. The strategy was particularly used in the Sixties to secure paintings during transportation and on loans for events. Since the most important paintings are often the ones that journey the most, they were generally wax-resin covered.